It would be a super useful ability to be able to create a rule that shifts due dates based on earlier due date moves.
For example, I have many subtasks to create a piece of video content. However, if my shoot date gets moved back (let’s say from March 12th to April 12th), the due dates I have tied to that all now must manually get pushed back.
So currently in this case, I need to go in an adjust each due date (or date range) back 1 month for my subtasks relating to anything that needs to get done after a shoot is complete (which is a lot), so it is certainly time consuming. 
I’d love if there was an addition to a rule that allows for such an automation to take place on subsequent dates if one is moved forward or backward on the calendar. 